Frequency of ERG-positive prostate carcinoma in Poland

Karolina Kaczmarczyk; Grzegorz Dyduch; Magdalena Białas; Sergiusz Demczuk; Tomasz Szopiński; Piotr Chłosta; Krzysztof Okoń

doi:10.5114/pjp.2013.38134

eISSN: 2084-9869
ISSN: 1233-9687

Polish Journal of Pathology

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3/2013
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abstract:

Frequency of ERG-positive prostate carcinoma in Poland

Karolina Kaczmarczyk

,

Grzegorz Dyduch

,

Magdalena Białas

,

Sergiusz Demczuk

,

Tomasz Szopiński

,

Piotr Chłosta

,

Krzysztof Okoń

Pol J Pathol 2013; 64 (3): 175-179

DOI: https://doi.org/10.5114/pjp.2013.38134

Online publish date: 2013/10/21

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Prostatic carcinoma (PC) is one of the most frequent cancers in men. Molecular pathogenesis of PC remains poorly understood. Translocations involving ERG were found to be the single most frequent genetic event. A strong correlation exists between this translocation and ERG positivity on immunohistochemistry. The rate of ERG positivity and its relationship with other clinicopathological parameters differ between populations and between studies; in particular, there are few data on ERG-positive PC in Eastern Europeans. In the present study, tissue microarrays of unselected PC cases were constructed and standard immunohistochemistry for ERG performed. The results were compared with the basic pathologic prognostic parameters. The group under study consisted of 113 cases; 52 (46.02%) were positive for ERG. The positive cases showed a slightly higher Gleason score (median 6 vs. 7). The majority of ERG-positive cases showed nerve bundle invasion and were also less likely to be prostate confined than negative ones. In conclusion, the frequency of ERG-positive PC in our series is similar to Western populations, and they show some unfavorable prognostic features.

keywords:

Frequency of ERG-positive prostate carcinoma in Poland

Karolina Kaczmarczyk , Grzegorz Dyduch , Magdalena Białas , Sergiusz Demczuk , Tomasz Szopiński , Piotr Chłosta , Krzysztof Okoń

prostatic carcinoma, ERG, tissue microarray, immunohistochemistry

Karolina Kaczmarczyk

,

Grzegorz Dyduch

,

Magdalena Białas

,

Sergiusz Demczuk

,

Tomasz Szopiński

,

Piotr Chłosta

,

Krzysztof Okoń